<template>
  <div class="cartcontrol">
    <transition name="move">
      <div class="cart-decrease" v-show="food.count > 0" @click.stop="decrease">
        <span class="inner icon-remove_circle_outline"></span>
      </div>
    </transition>
    <div class="cart-count" v-show="food.count > 0">{{ food.count }}</div>
    <div class="cart-add icon-add_circle" @click.stop="add" v-on="$listeners"></div>
  </div>
</template>
<script>
const EVENT_ADD = 'add'

export default {
  name: 'cartControl',
  props: {
    food: {
      type: Object
    }
  },
  methods: {
    add(event) {
      if (!this.food.count) {
        this.$set(this.food, 'count', 1)
      } else {
        this.food.count++
      }
      this.$emit(EVENT_ADD, event.target)
    },
    decrease() {
      if (this.food.count) {
        this.food.count--
      }
    }
  },
  // mounted(){
  //   console.log(this.$listeners);
  // }
}
</script>

<style lang="stylus" scoped>
@import '~styles/variable.stylus';
.cartcontrol{
  display:flex;
  align-items: center;

  .cart-decrease .inner,.cart-add{
    display: inline-block;
    font-size:24px;
    line-height: 24px;
    color: rgb(0,160,220);
    padding: 6px;
  }
  .cart-count{
    min-width: 12px;
    text-align: center;
    font-size: 10px;
    line-height: 24px;
    color: rgb(147,153,159);
  }

   .move-enter-active,.move-leave-active{
      transition: all 0.4s linear;
      .inner{
        transition: all 0.4s linear;
      }
    }

    .move-enter,.move-leave-to  {
      opacity: 0;
      transform: translate3d(24px,0,0);
      .inner{
        transform: rotate(180deg)
      }
    }
}
</style>
